Hub unit for the rear wheel of a geared bicycle



FIG. 1 is an isometric view of a hub unit for the rear wheel of a geared bicycle;

FIG. 2 is a side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 3 is a left end elevation view thereof; and,

FIG. 4 is a right end elevation view thereof. 

The ornamental design for a hub unit for the rear wheel of a geared bicycle, as shown and described. 